clk_unprepare(9)

📦 version 7.3.1, in nixpkgs unstable

💅 clk_unprepare — like, the undo button for your clock, bestie

okay so real talk, this is from the Kernel API Manual, section 9 (clk_unprepare(9)) — the kernel-api girlies' own little corner of the man pages ✨

🌸 SYNOPSIS

void clk_unprepare (struct clk *clk );

no cap, that's the whole signature — returns void, takes one pointer, done 💅

🎀 ARGUMENTS

  • clk — the clock source. that's it. that's the whole argument. she's lowkey minimal 🦋

💖 DESCRIPTION

so this is the undo of a previously prepared clock — like when you hit Ctrl+Z but for power management 🫶. it reverses a prep that already happened.

⚠️ bestie listen: the caller must balance the number of prepare and unprepare calls. no, like, literally. every clk_prepare(9) needs its matching clk_unprepare(9) or the universe (and the clock framework) gets out of whack 😭
🚨 and another big one: Must not be called from within atomic context. periodt. atomic context is not the vibe for this function, do not try it 🙈

👑 SEE ALSO

okay this list is long, but she ate and we're listing every single one, no skipping, iykyk 💀

the kernel file ./include/linux/clk.h, plus:

✨ mwah, that's the whole page ✨ this lil beauty lives in ./include/linux and it's dated October 2026 — so like, future vibes only 🦋💜 go balance your prepare calls, queen 👑

📦 where this page comes from